Step 1

Start off by washing your plums and then cutting them in half and removing the two seeds in the middle. Place them into a non reactive pot. Weigh the plums and add equal parts sugar. 500g = 500g sugar ect.

Step 2

Add the lemon juice and vanilla pod and heat the mixture over a moderate heat. Stir occasionally until the sugar dissolves. Bring to a light rolling boil and allow to simmer for an hour or until the mixture has slightly thickened.

Step 3

Test the mixture by putting a small amount on a saucer and place in the freezer for a minute to see if it sets.

Step 4

Once the mixture is ready, pour out into to jars. Put the lids on immediately and allow to cool before storing.